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CreateNurbsCurve.md

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CreateNurbsCurve

Description

Creates a new NURBS curve in the document.

FUNCTION CreateNurbsCurve(
				firstX,firstY,firstZ : REAL;
				byCtrlPts            : BOOLEAN;
				degree               : INTEGER): HANDLE;
def vs.CreateNurbsCurve(first, byCtrlPts, degree):
    return HANDLE

Parameters

Name Type Description
first REAL Coordinates of the first point in the curve definiton.
byCtrlPts BOOLEAN Create curve by control points (not interpolation).
degree INTEGER The degree of the NURBS curve.

Remarks

Creates a NURBS curve with a single fit or control point, if it succeeds, return nil if it fails.

([[User:CBM-c-|c]], 2010.12.26) Large [http://www.cs.mtu.edu/~shene/COURSES/cs3621/NOTES/ introduction to NURBS] by C.-K. Shene (MTU), including great many images.

Examples

==== VectorScript ====

PROCEDURE NewNurbsCurve;
VAR
nC :HANDLE;
BEGIN
nC := CreateNurbsCurve(0, 0, 0, true, 2);
AddVertex3D(nC, 1, 1, 0);
AddVertex3D(nC, 2, 0, 0);
END;
RUN(NewNurbsCurve);

==== Python ====

def NewNurbsCurve():
	nC = vs.CreateNurbsCurve(0, 0, 0, True, 2)
	vs.AddVertex3D(nC, 1, 1, 0)
	vs.AddVertex3D(nC, 2, 0, 0)

NewNurbsCurve()

Version

Availability: from VectorWorks 9.0

Category

  • Objects - NURBS